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APS » Journals » Phys. Rev. E » Volume 50 » Issue 5
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Phys. Rev. E 50, R3334–R3337 (1994)

Soft-x-ray radiation from plasmas produced by obliquely incident subpicosecond laser pulses

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U. Teubner
Max-Planck-Arbeitsgruppe Röntgenoptik an der Friedrich-Schiller-Universität Jena, Max-Wien-Platz 1, 07743 Jena, Germany

W. Theobald and C. Wülker
Max-Planck-Institut für Biophysikalische Chemie, Abteilung Laserphysik, Am Faβberg, 37077 Göttingen, Germany

E. Förster
Max-Planck-Arbeitsgruppe Röntgenoptik an der Friedrich-Schiller-Universität Jena, Max-Wien-Platz 1, 07743 Jena, Germany

Received 8 August 1994; published in the issue dated November 1994

Soft-x-ray spectra (< 0.5 keV) from subpicosecond-laser-pulse-produced Al plasmas have been measured at a series of intensities up to 1017 W/cm2 and different angles of incidence. It was found that the spectra depended strongly on these parameters. Comparison of the spectra produced by p- and s-polarized 248 nm radiation showed that not only collisional but also other absorption mechanisms were present. These additional processes affected only the total amount of the generated soft-x-ray radiation but not the spectral shape and not the electron temperature.

© 1994 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevE.50.R3334
DOI:
10.1103/PhysRevE.50.R3334
PACS:
52.25.Nr, 52.40.Nk, 52.50.Jm, 32.30.Rj
 
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